Norwich City FC are one of three Premier League clubs now stocking XXXXXXL shirts for the new season.

Eastern Daily Press: NCFC are one of three clubs to stock XXXXXXL shirts.NCFC are one of three clubs to stock XXXXXXL shirts. (Image: Archant)

Arsenal and Aston Villa are also stocking the 6XL size, which is two sizes bigger than the XXXXL size stocked by most Premier League teams.

The size may seem a bit over the top but there has been a growing trend for bigger sizes, over recent seasons as the UK's obesity crisis depends.

Last month, Manchester United announced they will sell their new shirts in XXXXL size, for the first time from August. The decision followed a string of complaints from frustrated fans who couldn't fit into their XXXL size.

The growing trend for bigger sizes has been met with concern by health officials, who warn that nearly three-quarters of British men and two-thirds of women will be too heavy in the next 15 years.

Currently 70 per cent of men are overweight, with 26 per cent obese and 59 per cent of British women are overweight, with 26 per cent obese.

The 6XL shirt was only available for the new away kit on the club website. The home kit was out of stock online but is available in the Canaries store.